Adjustable guide-collar for shaper-machines



W. R. WHITE.

ADJUS'TAB'LE GUIDE COLLAR F0 R SHAPER MACHINES. I APPLICATION FILED FEB.2I. 1921.

1 ,400,472. Patented D00. 13, 1921;

3 SHEETS SHEET 2 P /fi' D i "I j 7 5/ 3 fl z/ 4 WE. WHITE. I ADJUSTABLE cums COLLAR FOR SHAPER MACHINES.

. APPLICA'HON FILED FEB-'21. 1921. 1,400,472, Patented Dec., 13, 1921.

3 SHEETS-SHEET 2- 20 2/, illh M P a I I W .Whi L E gywcwfoz W. R. WHITE.

ADJUSTABLE GUIDE COLLAR FOR SHAPED MACHINES.

APPLICATION FILED FEB-21,1921.

1,400,472. Patented 'Dec. 13, 1921.

- 3 SHEETSSHEl -I1' a. I 90\ :21

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W.R.WL'1:L'LE- I ark: M e

UNITED STATES PATENT orries.

WI LLIAM,R. WHITE, OF LOUDON, TENNESSEE.

ADJUSTABLE GUIDE-COLLAR FOR SHAPER-MACHI NES.

Specification of Letters Iatent.

Application filed February 21, 1921. Serial No. 446,650.

T 0 all whom it may concern:

Be it knownthat I, WILLIAM R. WHITE,

a citizen of the United States, residing at.

and vibration incident to guiding a piece of work directly againsta cutter head, and which frequently results in imperfect and uneven work.

A furtherobject of the invention is the provision of a guide collarof the above described character, which is mounted upon the shaping machine in such manner as to give a plurality of horizontal and vertical adjustments, to take care of wear upon the several parts of the machine, as well as to meet the requirements of accurate and exacting work.

A further object of the invention isthe provision of an adjustable collar of the above described character, which is simple,

very durably constructed, and one which can be effectively applied to standard shaping machines with very little alteration to the machine itself.

Other objects and advantages will be apparent during the course of the following detailed description: i

In the accompanying drawings, forming a part of this specification, in which similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a fragmentary view partly in section, showing the improved adjustable collar in section and various details of its construction. 1

Fig. 2 is a plan view of the improved adjustable collar showing details thereof connected to a work supporting table of a shaping machine. Q Fig. 3 is a plan view similar to that shown in ig. 2 and showing the collar adjusted in 1 position to guide a porting table.

Fig. 4 is a cross sectional view taken on the line 4-4 of Fig. 3.

Fig. 5 is across sectional View taken on the line 55 of Fig. 2. I

In the drawings, wherein for'the purpose of illustration is shown the preferred em bodimentof my invention, the letter A.

designates a shaper machine of any ap-' proved type, and having the spindle supports B detaohably mounted thereon, and which are. provided for the purpose of rotatably receiving a spindleflO. A shaper head 1) of any approved type is provided, for attachment to the spindle C, and adapted to be rotated therewith when some. driving means (not shown) is appliedflto rotate the spindlerC by means of the pulley E. A table F is ordinarily provided upon the shaper machine A and receives the 001- lar Gr, through the horizontal. adjusting means H.

The shaper machine A, as before stated, may be any approved standard type, and the illustration shown in Fig. 1 is of thattype which supports a pair of spindles G upon either side of the machine, by means of the spindle bearingsB. The work supporting table F is of any suitable metal, and pref 'erably properly machined to provide a plane work engaging surface 10. The table F is provided with a relatively large circular opening 11 therethrough, and which is pro vided with an annularshoulder 12, for supporting the adjusting means H, and which will hereinafter be more fully described.

The cutter head D may be of any ap proved type, and preferably comprises a central shaft 15, which is screw threaded at 16 for the purpose of roperly securing the same to the spindle A lower collar 17 is mounted over the shaft 15, and normally rests upon the top of the spindle C to project upwardly from the table F in substantially the manner illustrated through- Patented ec. 13, 1921.

piece of work overasupout the several views of the drawing. An upper collar 18 is provided, for oooperatlon with the collar17, to support anytype of cutter 19; and which cutter 19 is ordinarily secured intermediate the collars 17 and18 by means of a nut 20 clamped uponthe up per screw threaded end21 of the shaft 15 and against the upper surface 22 of the collar 18, substantially a's illustrated in f i surface .36 Wllllie exactly ffiush and in the.

Fig. 1.

In this manner the entire cutter head with the exception of the screw threaded end 16 of the shaft 15 projects'upwardly from the table F, and in some instances, the machines can take care of adjustment of the spindle C to secure adjustment of.

the cutter head D with respect to the table F. The cutter 19'is provided with suitable blades 23, which project outwardly from. the outer surfaces of the collars17 and 18' for the purpose of engaging a piece of work K.

. "In the general type: of shaper machines,

instances, reached the required precision.

The collar G has thereforerbeen provided,

which issadjustably connected directly to'j .the worksupporting cable F thus doing away with vibration upon the work K incident to vibration of the spindle C.

collars 17 and 18'iduring normal operation of the device, In other words, the interior surface 25 of the collar G. is greateri indiameterthan the diameter of the collar 17.

The outer surface 26. of the collar G is of uniform diameter throughout the. length of the collar G and when the collar G is at V tached to the adjusting means H, :the outer surface or guiding surface 26 is positioned substantially vertical. 7 The adjusting meanstH, preferably comprises a primary disk 30, which is adaptedto be disposed directly in the aperture or.

circularopening 11 in the table F, and rotatably rests upon the annular shoulder '12. The circular opening 11 is concentric with respect tothe spindle C and the axis of the: cutter head D, a'nd itffollowsl that the.

outer circumference of the disk 30 will consequently be concentric with the axis of the cutter head D. Itis preferred that the "disk 30 be only of suflicient depth that the upper surface 31 thereof, lie flush and in the same" vide sufficient depth between the topof the I annular shoulder 33 andi'itopsurface 31. of

disk 30 adjacent the circular opening 32, is relatively. thickerthan the remaining portion of the disk.

'A' circular disk 35, which can be conveniently termed the secondary disk, is rotatablydisposed within the aperture 32 and is of. sufficient depth that when the same rests upon the annular shoulder 33, the top isprovided with: an eccentric circular opening 37, and :which'circular opening is of uniform diameter throughout. the depth of the disk 35.. JThis circularaperture or opening '37- isprovided to snu ly, -yet adjustably receive the guide collar 1 r In order to clamp the primary adjustingdisk to the work supporting table F, the clamplng means L is provided. This conslsts of a locking pin 40 reciprocably disposed within a suitable pocket 41 adjacent the edge of the primary disk 30- and which pocket opens out on to the outercircumfere ence of the disk 30; The locking pin 40 is provided with abeveled pointed end 42, which is first inserted into the pocket 41, and which beveled point is adapted to contact with the beveled point 43of a clamping screw 44 disposed downwardly from the top 1 of the dlsk 30.. Upon adjustment of the screw 44 within .its threaded aperture in the disk. 30, the beveled point 43 will'contact with the beveled-point 42 and feed the pin .40. outwardly into gripping contact with the r inner circumference of the aperture 11.

Similar clamping means are provided for locking the secondarydisk 35 to the primary disk 30; and -.for locking the secondary disk 35 to the guiding collar G. -The' op eration of the various clamping means L is identical and in all cases, it is preferred that the adjusting'screw 44 be disposed belowthe plane: as defined by the work table F Thus'inorder' to clampthe primary disk, secondary disk, and collar G tothe" work support table F it is merely necessary toproperly adjust the various screws 44.

In operation, the blades 23 are adjusted to the proper height with respect to the'plane of the work table F, and which adjustment forms no part of this invention, as it is provided upon most types of standard shaper machines. However, it is very desirable at times. that thatportion of the collar G. which projects'v upwardly fromthe top surface 10 of the work table F be varied, in order to suit the character of" the workxK. and? the and thecollar G can be rertically adjusted in the circular aperture 37, inorder to pro vide any length of the collar G extending upwardly from the top 10 as defined by'the work support table F.

After the knives and more particularly the blades 23 have been adjusted to the required height and the collar G properly adjusted as to the height; it will be necessary to properly adjust the collar G in a horizontal direction in order to properly position the guide surface 26 of the collar G, with respect to the blade 23, in order that said blade may cut the required depth into the work K. It is preferred that in most instances the secondary disk 35 be used for securing relatively large adjustments of the guide collar 7 with respect to the blades 23. This adjustment is of course secured by merely turning the disk 35 within the eccentric opening 32 in the primary disk and which will of course, have the effect of moving certain portions of the guide surface 26 of the collar G, 'to and from the blades 23. There could, of course, be a micrometer arrangement'uponthe disk, in order to determine,

that .de ree of adjustment which the guide collar makes with respect to the cutter head D, but for practical purposes, this is not necessary.

In one instance, the guide collar G will be concentrically disposed with respect to the axis of the cutter head D, and in order to determine this position, suitable marks e6 are, positioned upon adjacent margins of the primary disk, secondary disk, and work supporting table. F, and when these marks are in alinement, with respect to each other, the guide collar G will be exactly concentric with respect to the cutter'head D.

The position which the 'work K is to assume upon the work support table F is determined, and the eccentric or secondary disk 35 is so adjusted within its aperture 32, that the guide surface is adjusted to the proper depth with respect to the blade 23, and upon moving the work K over the table F, in the proper manner; and upon rotation of the cutter head D, the blades 23 will cutvto the proper depth, into the work K.

It is preferred that the secondary disk 35 be used in most instances for securing the proper adjustment.

However, the primary disk 30 will be found very useful in order to determine fine adjustments where exacting precision is required, and when used in combination with the disk 35 to place the collar G exactly concentric with respect to the cutter head G. Considerable wear will also result, due to sharpening of the blades 43, and it is preferred that the primary adjusting disk 30 be used to compensate for this wear.

From the foregoing, it can be seen that a cutter head has been provided, which when used in combination with the adjustable primary and secondary disks, is capable of performing the exact cutting operations, and when used 1n connectlon with the guide colrlar G willresult in accurate work, due to the a disk adjustably mounted for eccentric movement in said work supporting table wlth respect to said cutter, and a work guide collar eccentrically mounted in said disk.

2. The combination with a wood shaper machine including a work supporting table, and a cutting head, of a circular guide collar adjustably mounted in said work supporting table andadaptd for eccentric disposition with respect to said cutter head.

3. The combination with a shaping machine including a cutter, of a work supporting table, a disk concentrically mounted in said work supporting table with respect to said cutter and for adjustment thereabout, a second disk eccentrically mounted in said first mentioned disk, and. for adjustment therein, and an adjustable work guide collar mounted. for eccentric movement in said second mentioned disk.

4. The combination with a wood shaping.

machine including a work supporting table, and a shaper head, of a disk eccentrically disposed in said work supporting table with 5. The combination with a wood shaping machine including a work supporting table,

and a shaper head, of a primary disk rotatably mounted 1n said work supporting table concentrically with respect to said-shaper head, a secondary disk eccentrically and rotatably mounted in said primary disk, and work guiding means mounted upon said secondary disk about said shaper head.

8. The combination with a wood shaping machineincluding a work supporting table,

'and' a shaper'hea'd, of a pri nary disk rotatably mounted in said work supporting table concentrically with respect 'to' Silld. shaper head,la secondary disk eccentrically and: r tatably mounted in said primary dusk, and

invcojznbination a supporting frame, :iwork table, a'cutter head, means"rotatab1y mo'unt-d- 10 111;; said cutter head with respect to said Work table, Work guldlng means, and means forsupportmg sald guide means upon said 7 table for vertical and lateral adjustment;

WILLIAM R. WHiT 

